De-institutionalization of children's services is key of social care system developmet. Ministry of Health and Welfare (2010) brings a strategic plan "Plan of de-institutionalisation and transformation of social care services and other legal entities that provide social care in Croatia 2011- 2016 (2018)" which predicts reducing the number of children placed in institutions, the transformation of children's services and the development of family-based care in wich foster care is number one priority as the most appropriate form of care outside the family. The aim of the study is the rewiev of de-institutionalization of children's services ie. verify if it is achieved the intended goals, which are positive steps made and to which areas still need work. De-institutionalization of children's services in the Croatia and it's implementation has been slow, and goals wich had been set in the field of de-institutionalization of children's services for children without adequate parental care, children with disabilities and children with behavioral disorders did not achieved. The implementation of de-institutionalization of children's services had a number of obstacles, among which are underdevelopment of foster care in general and underdevelopment specialized foster care which is intended for children with disabilities and children with behavioral disorders. Also, as an obstacles, there are unavailability of prevention programs for all three groups of users and insufficient inter-sector cooperation.